US3235394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold dressing composition
Assignee: Foseco International Ltd
•
Filing: 1962-09-25
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Granted: 1966-02-15
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Expires: 1982-09-25
Abstract
No abstract record available.
Inventors
- 👤 Greatrex John Malcolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:10
CPC Classifications
B; B22; B22C; B22C3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A FLAME-TYPE MOLD DRESSING FOR USE IN THE CASTING OF COPPER BASE METAL, SAID DRESSING CONSISTING ESSENTIALLY OF AN ADMIXTURE OF 5 TO 15% BY WEIGHT OF A VISCOUS MINERAL OIL, 5 TO 15% BY WEIGHT OF AT LEAST ONE FILLER SELECTED FROM THE GROUPO CONSISTING OF CARBON, TALC, BONE ASH, AND CHINA CLAY, AND THE REMAINDER, TO MAKE 100%, OF FATTY ACID PITCH.
Claim 2
Dependent Claim
64 words
A FLAME-TYPE MOLD DRESSING FOR USE IN THE CASTING OF COPPER BASE METAL, SAID DRESSING CONSISTING ESSENTIALLY OF AN ADMIXTURE OF 5 TO 15% BY WEIGHT OF A VISCOUS MINERAL OIL, 5 TO 15% BY WEIGHT OF AT LEAST ONE FILLER SELECTED FROM THE GROUPO CONSISTING OF CARBON, TALC, BONE ASH, AND CHINA CLAY, AND THE REMAINDER, TO MAKE 100%, OF FATTY ACID PITCH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |